CTQP Roadway Traffic Control Inspection 5

Question 1

What spacing interval should be used for channelizing devices in a taper on a highway with a posted speed of 65 mph?

Accepted Answer

Devices placed at intervals equal to the speed limit in feet (e.g., 65 feet)

Answer

MUTCD guidance recommends channelizing device spacing in tapers equal to the speed limit in feet, so 65 mph = 65-foot spacing.

Question 2

A flagger must stop a vehicle for an approaching load. In which hand and in what position should the flagger hold the STOP paddle?

Accepted Answer

Either hand, with the STOP face toward approaching traffic and the arm extended horizontally

Answer

The flagger holds the STOP paddle with the STOP face toward approaching traffic and extends the arm horizontally to signal vehicles to stop.

Question 3

When inspecting arrow panels (sequential flashing arrow signs), which mode should be activated for a lane closure on a multi-lane highway?

Accepted Answer

Sequential arrow mode pointing toward the open lane(s)

Answer

Sequential arrow mode directs traffic to move toward open lanes, providing clear directional guidance in lane-closure situations on multi-lane highways.

Question 4

An inspector finds that a PCM (portable changeable message sign) displays a message with seven lines of text scrolling rapidly. What is the primary concern?

Accepted Answer

Drivers cannot read more than two to three lines at highway speeds without becoming distracted

Answer

MUTCD limits PCMS messages to two phases of two lines each so drivers can read them safely at highway speeds without distraction.

Question 5

Which of the following is a mandatory inspection checkpoint before any flagging operation begins each day?

Accepted Answer

Confirm flaggers have current certification, appropriate PPE, and that communications between flaggers are established and tested

Answer

Before flagging begins, the inspector must confirm flagger certifications are current, Class 3 PPE is worn, and communication between opposing flaggers is functional.

CTQP - Construction Training & Qualification Program Practice Test

CTQP - Construction Training & Qualification Program Practice Test

CTQP Roadway Traffic Control Inspection 5